Games Like S.E.M.I. – Side Effects May Include...

Struggling is a physics-based co-op platformer with a twisted spin on teamwork. Control the arms of a squishy abomination and lead it through a deranged world.

Why similar: Co-op 29%, Physics 24.3%, Funny 15.2%, Multiplayer 13.9%, Platformer 11.2%

Why You'll Like It: Features a similar focus on physics-based cooperative movement and surreal, unsettling environments that require constant coordination.

A physics-based co-op platformer about a guy in a rabbit costume! Team up with a friend or three (local or online) to beat levels, find hidden carrots and race against the clock. Experience bunny madness. Embrace carrot chaos. Become Super Bunny Man.

Why similar: Co-op 18.8%, Online Co-Op 17.4%, Platformer 16.1%, Physics 14.1%, Multiplayer 12%

Why You'll Like It: A quintessential physics-based platformer that captures the same chaotic, momentum-heavy co-op gameplay found in S.E.M.we.

Climb up from the depths of Hell. Scale various worlds solo or chained together with your friends in the 1-4 player platforming sensation.

Why similar: Co-op 28.3%, Online Co-Op 15.8%, Platformer 13.1%, Multiplayer 9.8%, Surreal 9.2%

Why You'll Like It: Requires intense cooperation and precision physics to navigate difficult platforming challenges while physically tethered to your partner.

Biped is a coop action adventure game with a strong focus on moment-to-moment collaboration between 2 players.

Why similar: Co-op 17.5%, Online Co-Op 16.6%, Physics 14.5%, Platformer 12.4%, Character Customization 11.7%

Why You'll Like It: Focuses on cooperative movement and puzzle-solving that requires players to synchronize their actions in a physics-heavy environment.

Human Fall Flat is a hilarious, light-hearted platformer set in floating dreamscapes that can be played solo or with up to 8 players online. Free new levels keep its vibrant community rewarded.

Why similar: Co-op 30.3%, Physics 22.9%, Multiplayer 16.5%, Funny 14.4%, Puzzle 5%

Why You'll Like It: The gold standard for physics-based puzzle-platforming where character movement is intentionally clumsy and chaotic.

Heave Ho is a riotous multiplayer party game for up to four players in couch co-op and versus play, or online with Steam Remote Play. Reach out, get a grip, and swing to victory — or meet your messy end!

Why similar: Co-op 40.3%, Multiplayer 26%, Funny 15.4%, Platformer 12.6%, Indie 5.7%

Why You'll Like It: Focuses on awkward, physics-based movement and cooperative problem-solving that leads to hilarious, unpredictable failures.

Shift Happens is a cooperative platformer for two. You and a friend shift your mass, throw each other and puzzle your way through four stages of stylized imaginary worlds. Including the occasional backstabbing and taunting. Play with a friend on a couch, online or even special singleplayer levels.

Why similar: Co-op 30.1%, Online Co-Op 28.7%, Multiplayer 13%, Platformer 11.5%, Funny 6.8%

Why You'll Like It: A co-op platformer that relies on shifting character properties to solve puzzles, mirroring the transformative nature of S.E.M.we.

Stretcher Together is a cooperative 3D platformer for two players. You play as medics rescuing a patient after a fall. Jump, balance, and climb your way up—but don’t drop the patient, or you’ll have to go back down to retrieve them!

Why similar: Co-op 22.5%, Online Co-Op 19.6%, Platformer 15.4%, Physics 13.9%, Third Person 10.2%

Why You'll Like It: Combines medical-themed absurdity with physics-based cooperative platforming for a chaotic experience.

Delivery Attempted. That's the Totally Reliable Delivery Service guarantee! T.R.D.S. is a ragdoll physics simulation about terrible package delivery couriers. Work together using odd machinery, useful gadgets, and the wonders of physics to reliably deliver packages to their destination.

Why similar: Co-op 23.7%, Physics 20.7%, Third Person 12.6%, Funny 12.3%, Multiplayer 10.9%

Why You'll Like It: Emphasizes ragdoll physics and chaotic cooperative tasks that often result in unpredictable and funny outcomes.

Grab your best bud for help in this new co-op challenge to help two adorable penguins, Bread and Fred, reach the top of the snowy summit. Time your jumps, cling to walls and swing across gaps to see how far you can make it before you tumble all the way back down the mountain.

Why similar: Co-op 35.8%, Online Co-Op 17.5%, Platformer 14.4%, Multiplayer 13.3%, Comedy 9.9%

Why You'll Like It: A challenging co-op platformer where physics and momentum are your greatest tools and your biggest obstacles.

Wrangle the hands and arms of a 1970s space cosmonaut and push, pull and twist your way through an increasingly precarious range of physically simulated stellar scenarios, where without gravity, nothing is still, nothing is secure, and nothing is simple.

Why similar: Physics 26.8%, Co-op 25.1%, Stylized 11.8%, Funny 9.3%, Multiplayer 7.3%

Why You'll Like It: Features complex, physics-based controls that make simple tasks feel like a surreal, difficult challenge in a co-op setting.

"Parking Together!" is a chaotic co-op "parking" game! Navigate non-stop hazards to deliver a car to the goal that explodes instantly on impact... Work with your partner to overcome obstacles, clear stages, and conquer the Time Attack!

Why similar: Co-op 21.4%, Online Co-Op 17.5%, Physics 15.3%, Platformer 14.4%, Multiplayer 10.9%

Why You'll Like It: A puzzle-platformer that uses physics and cooperative mechanics to create funny, high-pressure situations.

SOS OPS! is more than a game. Your task is to save the city. You will find yourself in the epicenter of madness, where co-op missions with friends will raise the adrenaline to the limit!

Why similar: Co-op 17.7%, Physics 14.2%, Online Co-Op 14.1%, Character Customization 11.5%, Third Person 10.9%

Why You'll Like It: A physics-based cooperative game that thrives on the same kind of chaotic, third-person action found in S.E.M.we.

Team up as two quirky construction workers in this fun 2-player co-op platformer! Carry a fragile glass window through colorful levels filled with challenges. Communicate and coordinate to dodge obstacles and solve puzzles. Can you finish the job without breaking the glass?

Why similar: Co-op 20.8%, Online Co-Op 17.7%, Physics 14%, Platformer 13.1%, Multiplayer 12.1%

Why You'll Like It: A cooperative puzzle-platformer that emphasizes delicate physics and the chaos of working together.

Fight your friends as puppies, kittens and other fuzzy creatures in PARTY ANIMALS! Paw it out with your friends remotely, or huddle together for chaotic fun on the same screen. Interact with the world under our realistic physics engine. Did I mention PUPPIES?

Why similar: Multiplayer 23.3%, Co-op 21.6%, Online Co-Op 18.5%, Funny 17.3%, Physics 13.8%

Why You'll Like It: Features physics-based brawling and cooperative objectives that emphasize chaotic, emergent gameplay.

Gang Beasts is a silly multiplayer party game with surly gelatinous characters, brutal slapstick fight sequences, and absurd hazardous environments, set in the mean streets of Beef City.

Why similar: Physics 22.4%, Multiplayer 15.8%, Funny 14.9%, Co-op 13.8%, Beat 'em up 13.1%

Why You'll Like It: Uses ragdoll physics and environmental hazards to create the same brand of slapstick, unpredictable multiplayer combat.

Hoplegs is an unconventional and entertaining platformer where the gamepad buttons are your legs! Create and share your own levels, challenge your friends, and have fun!

Why similar: Co-op 24.2%, Physics 22.9%, Platformer 22.7%, Funny 13.8%, Comedy 12.4%

Why You'll Like It: A difficult physics-platformer that requires precise control and creative use of character movement.

Team up for 1-4 player co-op platforming in procedurally-generated alien caves! Customize your gremlin, embrace the chaos and fart on friends! Tackle challenges together and unlock new looks and wild mutations for your next run!

Why similar: Co-op 22.8%, Online Co-Op 22.7%, Platformer 17.5%, Comedy 12.8%, Character Customization 11.6%

Why You'll Like It: Offers atmospheric platforming and cooperative exploration that complements the surreal tone of S.E.M.we.

Biped 2 is a coop action adventure game with a strong focus on moment-to-moment collaboration alone or between 2 or 4 players.

Why similar: Co-op 23%, Online Co-Op 21.6%, Physics 19.1%, Multiplayer 13.7%, Funny 11.6%

Why You'll Like It: Continues the physics-based cooperative puzzle-solving of the original with even more focus on character interaction.

Moving Out is back and wackier than ever, and now with ONLINE PLAY! Return to Packmore and use your moving skills across brand new dimensions and some old favourites. Help rebuild Smooth Moves and become an all-star F.A.R.T. (Furniture Arrangement & Relocation Technician)!

Why similar: Online Co-Op 22.9%, Co-op 19.2%, Physics 18.1%, Multiplayer 14.1%, Stylized 12.3%

Why You'll Like It: A physics-heavy cooperative game where the environment and character movement are designed to cause hilarious, unpredictable chaos.

PICO PARK is a cooperative local/online multiplay action puzzle game for 2-8 players.

Why similar: Online Co-Op 32.6%, Multiplayer 23.7%, Co-op 23.4%, Platformer 10.1%, Funny 5.3%

Why You'll Like It: A cooperative puzzle-platformer that requires players to synchronize their physics-based movements to succeed.

Tools Up! is an exciting local co-op that tests your renovation and teamwork skills. Paint walls, tear off wallpaper, and move couches against the clock!

Why similar: Multiplayer 34.3%, Funny 24.5%, Co-op 22.9%, Action 8.8%, Indie 8.2%

Why You'll Like It: Focuses on high-speed, chaotic cooperative tasks that rely on physics and environmental interaction.

Meet Henry, merely half a head, yet with the peculiar ability to become any object within their reach! Discover every object’s unique abilities and cleverly combine them to take Henry through their not-so-ordinary everyday life.

Why similar: Co-op 24.6%, Physics 20.5%, Comedy 13.7%, Multiplayer 10.8%, Funny 9.3%

Why You'll Like It: A sandbox adventure that uses physics and object manipulation to create surreal, funny cooperative moments.

Rubber Bandits is a criminally fun multiplayer party game for up to 4 players. With 8 action-packed game modes, players steal, brawl, and dash to the finish line with the most loot to win!

Why similar: Co-op 17.9%, Beat 'em up 17%, Online Co-Op 16.9%, Physics 14.5%, Multiplayer 12.5%

Why You'll Like It: A physics-based party game that encourages chaotic, unpredictable interactions between players in a competitive environment.

Come with Me is a two-player cooperative game set in a puzzle filled magical world. Solve puzzles together by using your special abilities and collect memories to uncover the mystery of the world around you.

Why similar: Co-op 21.9%, Online Co-Op 20.8%, Platformer 14.2%, Physics 12.7%, Funny 8.8%

Why You'll Like It: A 3D platformer that focuses on cooperative traversal and physics-based environmental interaction.

Overcome the trials by relying on your partner's sights! A 3D co-op game that goes beyond common sense. Enjoy unique gameplay based on sights in I See Me.

Why similar: Online Co-Op 32.1%, Co-op 25.2%, Multiplayer 18.1%, Platformer 12.1%, Third Person 8.7%

Why You'll Like It: An online co-op experience that emphasizes multiplayer interaction and physics-based exploration.

Unrailed! is a co-op multiplayer game where you have to work together with your friends to build a train track across endless procedurally generated worlds. Master random encounters with its inhabitants, upgrade your train and keep it from derailing!

Why similar: Co-op 32.5%, Online Co-Op 31.5%, Multiplayer 20.7%, Funny 8.4%, Action 3.9%

Why You'll Like It: A cooperative game where physics and resource management collide to create constant, chaotic pressure.

Filthy Animals is a chaotic single-player/co-op heist game for up to 4 players. Become a mutant animal working for criminal mastermind Tony as you steal, fight, fall over, and eat tacos. Solve puzzles and avoid security before making off with the loot, ya Filthy Animal!

Why similar: Online Co-Op 21.1%, Co-op 20.9%, Physics 17.8%, Multiplayer 12.9%, Comedy 11.7%

Why You'll Like It: Features chaotic, physics-based cooperative heists that mirror the unpredictable nature of S.E.M.we.

A co-op game for 1-6+ players where you fall, dig, and explode your way down a dangerous cave system to find your lost dog. Catch your friends and watch your step on this journey full of traps, hazards, and the most deadly force of all: gravity. Will you jump into the unknown to rescue your dog?

Why similar: Online Co-Op 16.7%, Co-op 14.9%, Physics 13.4%, Character Customization 10.8%, Multiplayer 10.5%

Simple Fish Adventure is an unusual short physics-based platformer. Jump like a fish, think like a fish, be a fish! Overcome obstacles and suffer. Also includes co-op for up to 4 players.

Why similar: Physics 27.9%, Platformer 20.7%, Online Co-Op 16.7%, Co-op 15.3%, Comedy 8%

Why You'll Like It: A physics-based platformer that captures the same experimental and casual feel of S.E.M.we.

KeyWe is a cute, co-operative postal puzzler starring Jeff and Debra, two small kiwi birds working in a whimsical post office. They must jump, flap, peck and butt-slam their way across an interactive landscape of levers, bells and buttons to get those messages delivered on time!

Why similar: Co-op 27.8%, Online Co-Op 18.3%, Platformer 13.3%, Character Customization 12.8%, Multiplayer 10.4%

Why You'll Like It: A cooperative puzzle game that uses physics-based interaction to make simple tasks feel frantic and unpredictable.

A cooperative (maybe sabotaging) platformer that blends action-jumping and physics simulation. You can challenge solo or team up with a friend locally or remotely in two-player mode to unlock even more unexpected ways to play. Healing balloons and time-race to unlock more subsequent levels.

Why similar: Co-op 30.2%, Platformer 24.4%, Physics 20.4%, Funny 16%, Action 6%

You are bound by a chain — every step matters. Break the Chain is a physics-based solo and co-op puzzle game where precision, timing, and teamwork are everything. One mistake can pull everyone down. Fall, restart, and fight your way to freedom.

Why similar: Co-op 18.6%, Online Co-Op 17.5%, Physics 14%, Platformer 13.7%, Multiplayer 11%

HAM is a chaotic co-op factory management game where you and your friends struggle to fulfill endless orders while everything falls apart around you. Work together to survive the corporate grind, or watch your careers go up in smoke when the HAM hits the fan.

Why similar: Co-op 24.7%, Physics 21.7%, Online Co-Op 20.9%, Multiplayer 11.1%, Funny 9.6%

A co-op adventure about driving your Recreational Vehicle home.

Why similar: Co-op 28%, Online Co-Op 20.5%, Multiplayer 19.8%, Funny 11.2%, Physics 11.2%

Beat Me! is a physics-based multiplayer game for up to 6 players. Play with comical fantasy characters in a wide variety of fun and surprising environments. Challenge your friends locally or beat others over the internet!

Why similar: Beat 'em up 21.4%, Co-op 15.6%, Online Co-Op 14.9%, Physics 12.7%, Comedy 9%

One car. Multiple drivers. Zero coordination. Drive Together is a chaotic co-op driving game where each player controls a different part of the same car. Steering, throttle, brakes.. everything is split between players. Communicate, coordinate, and try to finish the track together with your friends.

Why similar: Online Co-Op 26.3%, Physics 20.8%, Co-op 18.6%, Platformer 10.2%, Funny 7.1%

In this physics-based co-op platformer, you and a friend must carry your short-tempered king through deadly medieval courses. Dodge traps, maintain balance, and work together to reach the throne room. One wrong step, and the king might crown you with his rage!

Why similar: Co-op 18.2%, Online Co-Op 17.7%, Physics 12.2%, Multiplayer 10.7%, Platformer 9.5%

Join a fun adventure by rolling a log together! In this 2 player co-op platformer, become lumberjacks with your friend and keep your balance while moving forward on a log. Overcome obstacles by moving back and forth, reach the goal, and never give up. Knowing how to get back up matters.

Why similar: Co-op 21.7%, Physics 16.1%, Online Co-Op 15.3%, Multiplayer 10.1%, Third Person 8.9%

Pain Party is a game that combines precise movement mechanics with the chaos of a game show. Fight through the story mode or compete with up to 24 players in the online party mode. But remember, one hit and it's all over. Let the party begin!

Why similar: Physics 17.5%, Third Person 17.4%, Comedy 14.9%, Funny 12%, Multiplayer 11%

The sequel to the physics-based puzzle game 'Q REMASTERED,' titled 'Q2 HUMANITY,' introduces characters or 'humans' that now appear in the game. These 'humans' can jump, bounce, throw things, and sometimes even exhibit special abilities. 'Q2' can be played solo or with up to 4 players.

Why similar: Co-op 25.8%, Physics 18.6%, Online Co-Op 17%, Multiplayer 13.1%, Funny 12.3%

🐸Up to 8 player co-op extraction puzzle-platformer where you swing, jump, catapult your friends, and eat eat EAT until you grow into a humongous Megafrog. Squad up with your frog friends and storm the Sewers for the glory of the Swamp King!🐸

Why similar: Online Co-Op 18.5%, Co-op 17.7%, Physics 14.8%, Multiplayer 11.6%, Character Customization 8.7%

3D physics-platformer where you are an egg! Roll, hop and slide your way back home.

Why similar: Third Person 17.1%, Physics 13.9%, Co-op 12.8%, Platformer 12%, Online Co-Op 11.5%

Annihilate an evil penguin regime in this cinematic platform adventure game offering full solo and co-op campaigns.

Why similar: Co-op 19.9%, Online Co-Op 18.9%, Platformer 18.3%, Multiplayer 11.2%, Funny 9.9%

RUBATO, an experimental, 2D physics-based take on the collect-a-thon genre!

Why similar: Surreal 33.3%, Physics 28.2%, Funny 16.5%, Platformer 13.6%, Indie 4.6%

Dung Ho! is a co-op physics game where you and your friends are dung beetles rolling a (dung) ball into a hole.

Why similar: Co-op 19.5%, Online Co-Op 17.9%, Physics 14.2%, Multiplayer 13.7%, Funny 9.8%

Melon Simulator™ is a chaotic, co-op (1 - 4 players), first person melee combat game. Almost anything that isn't nailed down can be used to whack, slice, and throw at the oncoming melon hoard...

Why similar: Beat 'em up 20.2%, Online Co-Op 17.7%, Co-op 17.6%, Physics 16.5%, Multiplayer 12.2%

Play solo or with friends in chaotic modes, master the physics… or just blow everyone up!

Why similar: Physics 18.2%, Character Customization 16.4%, Multiplayer 13.3%, Platformer 13.1%, Third Person 11.3%

How hard can walking be? In this physics-driven nightmare, every step is a trap. No checkpoints, no mercy, just slapstick chaos. Suffer alone or drag up to 4 friends into the madness. Can you reach your meeting? GOOD LUCK!

Why similar: Online Co-Op 20.4%, Co-op 19.9%, Physics 16.8%, Multiplayer 12.6%, Platformer 12.4%

Superfighters Deluxe is a unique action game that combines brawling, shooting and platforming in dynamic sandboxy 2D levels. Lots of weapons and fun gameplay systems interlock to create absurd action-movie chaos.

Why similar: Multiplayer 16.9%, Online Co-Op 15.4%, Beat 'em up 14.7%, Platformer 12.7%, Physics 12%

Deliver those goods, real good - or get turned into scrap trying! Chaotic co-op platforming, genre-bending power-ups, a challenging campaign, and endless community-built levels await, so grab a friend and GO!

Why similar: Co-op 26.2%, Platformer 20.5%, Online Co-Op 20.1%, Multiplayer 15.3%, Funny 12.4%

No packages? No problem! Break in. Scrap everything. Deliver... A chaotic online co-op game for up to 5 players (or 15 if you really want to)!

Why similar: Physics 19.9%, Co-op 18.1%, Online Co-Op 16%, Multiplayer 13.9%, Action Roguelike 11.9%

Revenge of the Savage Planet is an upbeat, satirical action adventure Sci-Fi. Jump, shoot and collect your way across vibrant alien worlds, uncovering new gear and upgrades, while discovering various hidden secrets.

Why similar: Co-op 23.3%, Online Co-Op 21.9%, Platformer 15%, Third Person 13.2%, Multiplayer 11%

Lively Chair Simulator is an indie multiplayer game with strange controls. Let’s see if you are suitable to be a chair.

Why similar: Physics 21.8%, Comedy 17.9%, Funny 14.2%, Co-op 11%, Online Co-Op 10.2%

"Mayhemers" is a multiplayer chaos creation game for up to 8 players with a procedurally generated map. Choose your side: Will you be a Mayhemer or a Guardian? Mayhemers' task is to create chaos. Guardians' task is to stop them.

Why similar: Online Co-Op 18.7%, Co-op 18.3%, Beat 'em up 17%, Multiplayer 12.7%, Funny 9.8%

Venture together with your friends on an unknown planet. Use color switching, match-3 shooting, and artifact powers to overcome challenges and keep advancing. What lies ahead of you is an adventure filled with wonder, hope, and much more to discover!

Why similar: Co-op 29.2%, Platformer 19.9%, Funny 13%, Online Co-Op 11.4%, Multiplayer 7.1%

A twisted trial of pill roulette for up to 4 players (solo or online). Pick your poison. Use experimental items to shift the odds. And remember: only one of you can survive.

Why similar: Psychological 28.9%, Surreal 26.5%, Multiplayer 22%, 3D 9.6%, Co-op 8.1%

Embark on a chaotic co-op drive in Chained Wheels, where two vehicles are chained together and every move turns into a shared adventure or a DISASTER.

Why similar: Online Co-Op 34.3%, Physics 22.1%, Co-op 17.4%, Multiplayer 10.1%, Funny 8.1%